Foxtrot B-39 (U 475) was built in 1967,
and used specifically for training foreign submariners - Libyan, Cuban and Indian.

She was in active service with the Russian Baltic Fleet until April 1, 1994, having spent 27 years in active service.The vessel arrived in London from the naval base in Riga, Latvia, in July 1994 under the command of its Captain Vitalij Burda